The smarTROLL multiparameter hand-held device with Bluetooth from In-Situ Inc. simplifies water-quality spot checks. No training time is required to use the probe or the iSitu smartphone app. Users can instantly view results for 14 parameters on a smartphone. The app guides users through calibration steps and automatically generates a calibration report. It is designed to run on an iPhone, iPod touch or iPad. Users can instantly email data to colleagues or log data to an iOS device. Photos of sites and GPS coordinates can be stored with site data and instantly retrieved for routine sampling. The probe’s dissolved oxygen sensor uses EPA-approved optical methodology. 800/446-7488; www.in-situ.com.